循环遍历HTML表格中的元素

Question

我正在学习Javascript,在学校作业中我们必须使用循环计数在2014年制作了多少游戏.

它在控制台中没有返回任何内容,我哪里出错了？

var allGames = document.getElementsByTagName('td');
var array = Array.prototype.slice.call(allGames, 0)
var games14 = 0;
for (var i = 0; i < array.length; ++i) {
  if (array[i] == 2014) {
    games14++;
    console.log(games14)
  }
}

<table id="games">
  <thead>
    <tr>
      <th>Titel</th>
      <th>Genre</th>
      <th>Årstal</th>
    </tr>
  </thead>
  <tbody id="games_tbody">
    <tr class="horror">
      <td class="title">Outlast</td>
      <td>Horror</td>
      <td>2013</td>
    </tr>
    <tr class="rpg">
      <td class="title">Dragon Age: Inquisition</td>
      <td>Role-playing Game</td>
      <td>2014</td>
    </tr>
    <tr class="rpg">
      <td class="title">Skyrim</td>
      <td>Role-playing Game</td>
      <td>2011</td>
    </tr>
    <tr class="horror">
      <td class="title">Amnesia: The Dark Descent</td>
      <td>Horror</td>
      <td>2010</td>
    </tr>
    <tr class="simulator">
      <td class="title">Scania Truck Driving Simulator</td>
      <td>Simulator</td>
      <td>2012</td>
    </tr>
    <tr class="horror">
      <td class="title">Five Nights at Freddy’s</td>
      <td>Horror</td>
      <td>2014</td>
    </tr>
    <tr class="simulator">
      <td class="title">Sims 4</td>
      <td>Simulator</td>
      <td>2014</td>
    </tr>
    <tr class="rts" id="last">
      <td class="title">Warcraft III: Reign of Chaos</td>
      <td>Real-time Strategy</td>
      <td>2002</td>
    </tr>
  </tbody>
</table>

Answer 1

您需要检查其文本:

var allGames = document.getElementsByTagName('td');
...
 if (array[i].innerHTML == '2014') {

要么,

if(array[i].innerText == '2014' || array[i].textContent == '2014'){